The conversion of the prestressed system and the layout of the temporary external prestressed tendons for the joined sections of the bridge are also expounded.
同时，对单向悬臂浇筑施工桥梁合拢梁体的预应力体系转换和临时体外预应力束的布设原理做了阐述。
Secondly, in the stage of planning and designing, the method to plan the area, the layout mode of the site, the selection of materials and the temporary technical measures, are researched.
其次是规划设计阶段对场地分区规划方法、场地布局模式、材料的选择与临时性技术措施。
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